ZIP Code 91789 – Walnut, California
The 91789 ZIP Code belongs to Walnut, California. The population in this 91789 ZIP code is 40,933. The latitude is 34.01858 and longitude is -117.85408 in 91789 Walnut, California. The time zone for this 91789 ZIP code is America/Los_Angeles.
| City | Walnut |
| Zip Code | 91789 |
| State | California |
| County | Los Angeles |
| Population | 40,933 |
| Latitude | 34.01858 |
| Longitude | -117.85408 |
| Time Zone | America/Los_Angeles |